/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gettyio.core.pipeline.in;


import com.gettyio.core.channel.SocketChannel;
import com.gettyio.core.pipeline.DatagramPacketHandler;
import com.gettyio.core.util.LinkedNonReadBlockQueue;

/**
 * SimpleChannelInboundHandler.java
 *
 * @description:简易的通道输出，继承这个类可容易实现消息接收
 * @author:gogym
 * @date:2020/4/9
 * @copyright: Copyright by gettyio.com
 */
public abstract class SimpleChannelInboundHandler<T> extends ChannelInboundHandlerAdapter implements DatagramPacketHandler {


    @Override
    public void decode(SocketChannel socketChannel, Object obj, LinkedNonReadBlockQueue<Object> out) throws Exception {

        while (out.getCount() > 0) {
            channelRead(socketChannel, out.poll());
        }

    }


    @Override
    public void channelRead(SocketChannel socketChannel, Object obj) throws Exception {
        channelRead0(socketChannel, (T) obj);
    }


    /**
     * 解码后的消息输出
     *
     * @param socketChannel 通道
     * @param t             解密后的消息
     * @throws Exception 异常
     */
    public abstract void channelRead0(SocketChannel socketChannel, T t) throws Exception;

}
